Rule History

alert udp $HOME_NET any -> $EXTERNAL_NET 53 (msg:"ET DELETED DNS Query to Zeus CnC DGA Domain yvxfekhokspfuwqr.ru Pseudo Random Domain"; content:"|01 00 00 01 00 00 00 00 00 00|"; depth:10; offset:2; content:"|10|yvxfekhokspfuwqr|02|ru|00|"; nocase; distance:0; reference:url,blog.unmaskparasites.com/2012/06/22/runforestrun-and-pseudo-random-domains/; reference:url,blog.opendns.com/2012/07/10/opendns-security-team-blackhole-exploit/; classtype:command-and-control; sid:2015339; rev:3; metadata:created_at 2012_07_12, signature_severity Unknown, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)